from urllib.parse import parse_qs, urlparse

# 示例URL
url = "http://example.com/path?name=John&age=30&hobbies=reading&hobbies=swimming"

# 解析URL获取查询字符串部分
parsed_url = urlparse(url)
query_string = parsed_url.query  # 'name=John&age=30&hobbies=reading&hobbies=swimming'

# 解析查询字符串为字典
params = parse_qs(query_string)
print(params)
# 输出: {'name': ['John'], 'age': ['30'], 'hobbies': ['reading', 'swimming']}

import cgi

query_string = "name=John&age=30&hobbies=reading&hobbies=swimming"
params = cgi.parse_qs(query_string)
print(params)

from flask import Flask, request

app = Flask(__name__)

@app.route('/')
def index():
    name = request.args.get('name')  # 获取单个参数
    age = request.args.get('age', type=int)  # 带类型转换
    hobbies = request.args.getlist('hobbies')  # 获取多值参数列表
    return f"Name: {name}, Age: {age}, Hobbies: {hobbies}"

if __name__ == '__main__':
    app.run()

from django.http import HttpResponse

def index(request):
    name = request.GET.get('name')  # 获取单个参数
    age = request.GET.get('age')  # 获取单个参数
    hobbies = request.GET.getlist('hobbies')  # 获取多值参数列表
    return HttpResponse(f"Name: {name}, Age: {age}, Hobbies: {hobbies}")

from urllib.parse import quote, unquote

encoded = quote("John Doe")  # 'John%20Doe'
decoded = unquote("John%20Doe")  # 'John Doe'